Lanthanum oxide powder Raw Materials CAS 1312-81-8

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Uses and synthesis of Lanthanum oxide powder

Lanthanum oxide powder is an oxide of lanthanum (III). It is a white powder at room temperature with a relative density of 6.51(15/4 ° C), a melting point of 2307 ° C and a boiling point of 4200 ° C. Insoluble in cold water, in hot water into lanthanum hydroxide, soluble in dilute inorganic acid to produce the corresponding acid lanthanum salt, insoluble in acetone. Eutectic with sodium hydroxide to form sodium tetralanthanate. It absorbs carbon dioxide from the air and turns it into lanthanum carbonate. Lanthanum oxide is prepared by burning lanthanum oxalate, lanthanum nitrate, lanthanum carbonate or lanthanum hydroxide. Lanthanum oxide powder is used as analytical reagent and refractory material. Used for manufacturing optical glass, process ceramics, gas lampshade, special alloys, etc.

Applications/Functions of Lanthanum oxide powder

1. Lanthanum oxide powder is mainly used in the manufacture of precision optical glass and optical fiber. Also used in the electronics industry as ceramic capacitors, piezoelectric ceramic admixture. It is also used as raw material for lanthanum boride and catalyst for oil separation and refining.
2. Lanthanum oxide is used as an analytical reagent, as a raw material for optical glass and as a refractory
3. Lanthanum oxide is mainly used in the manufacture of cameras, microscopes, various optical glass components and optical fiber, which can improve refractive properties. It also has certain applications in electronic ceramics industry and catalyst preparation.

Physicochemical Property of Lanthanum oxide powder

Lanthanum oxide white rhombic or amorphous powder. Soluble in acid, ethanol, ammonium chloride, insoluble in water, ketone.

Production methodprocess of Lanthanum oxide powder

Lanthanum oxide powder was prepared by 35-38 stage extraction of lanthanum and other rare earth elements using dimethyl heptyl methylphosphine (P350), a neutral phosphine extractive agent, and P350-kerosene system. The lanthanum raffinate containing lanthanum was neutralized by ammonia, precipitated by oxalic acid, and then filtered and burned to prepare lanthanum oxide powder.

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